Defensive publication

ABSTRACT

PROCESS FOR THE AMMOXIDATIVE CONVERSION OF ALKYL-SUBSTITUTED AROMATIC HYDROCARBONS TO THE CORRESPONDING AROMATIC NITRILE COMPRISING CONTACTING A MIXTURE OF VAPORIZED HYDROCARBON, AMMONIA AND OXYGEN AT A TEMPERATURE OF ABOUT 350* C. TO 625* C. WITH A CATALYST COMPOSITION COMPRISING OXIDIZED MOLYBDENUM AND AT LEAST ONE OF OXIDIZED NIOBIUM AND OXIDIZED TANTALUM AND OPTIONALLY OXIDIZED ARSENIC. THE AROMATIC HYDROCARBONS MAY INCLUDE BENZENE AND NAPHTHALENE SUBSTITUTED BY AT LEAST ONE GROUP REPRESENTED BY THE FORMULA R1R2R3C- WHEREIN R1, R2 AND R3 EACH REPRESENT A HYDROGEN ATOM OR A LOWER ALKYL GROUP CONTAINING NOT MORE THAN 2 CARBON ATOMS. AN ANALYSIS OF THE COMPONENTS OF THE CATALYST ON A WEIGHT PERCENT BASIS, WHEN EXPRESSED AS THE THEORETICAL OXIDES IS:   PERCENT MOO3 2-60 NB205 1-35 AS203 0-25 SUPPORT 090OR MOO3 2-60 TA205 1-35 AS203 0-25 SUPPORT 0-90SP@

DEFENSIVE PUBLICATION UNITED STATES PATENT OFFICE Published at therequest of the applicant or owner in accordance with the Notice of Dec.16, 1969, S69 O.G. 687. The abstracts of Defensive Publicationapplications are identified by distinctly numbered series and arearranged chronologically. The heading of each abstract indicates thenumber of pages of specification, including claims and sheets ofdrawings contained in the application as originally filed. The files ofthese applications are available to the public for inspection andreproduction may be purchased for 30 cents a sheet.

Defensive Publication applications have not been examined as to themerits of alleged invention. The Patent Oflice makes no assertion as tothe novelty of the disclosed subject matter.

PUBLISHED AUGUST 31, 1971 PROCESS FOR PREPARING AROMATIC NITRILES FROMALKYL AROMATIC HYDROCARBONS AND CATALYSTS THEREFOR Howard S. Young, R0.Box 511, Kingsport, Tenn. 37662 Continuation of application Ser. No.688,352, Dec. 6,

1967. This application Sept. 19, 1969, Ser. No. 859,484

Int. Cl. B015 11/06; C07c 12/02 US. Cl. 260--465C No Drawing. 17 PagesSpecification Process for the ammoxidative conversion ofalkyl-substituted aromatic hydrocarbons to the corresponding aromaticnitrile comprising contacting a mixture of vaporized hydrocarbon,ammonia and oxygen at a temperature of about 350 C. to 625 C. With acatalyst composition comprising oxidized molybdenum and at least one ofoxidized niobium and oxidized tantalum and optionally oxidized arsenic.The aromatic hydrocarbons may include benzene and naphthalenesubstituted by at least one group represented by the formula R R R C-wherein R R and R each represent a hydrogen atom or a lower alkyl groupcontaining not more than 2 carbon atoms. An analysis of the componentsof the catalyst on a Weight percent basis, when expressed as thetheoretical oxides, is:

Percent M00 2-60 Nb O 1-35 AS203 Support 090 M00 2-60 T211 0 1-35 As O0-25 Support 090

